src/plugins/ctf/common: restructure subtree

[babeltrace.git] / src / plugins / ctf / common / src / metadata / tsdl / ctf-meta-update-text-array-sequence.cpp

diff --git a/src/plugins/ctf/common/src/metadata/tsdl/ctf-meta-update-text-array-sequence.cpp b/src/plugins/ctf/common/src/metadata/tsdl/ctf-meta-update-text-array-sequence.cpp
new file mode 100644 (file)
index 0000000..6c3bfc9
--- /dev/null
+++ b/src/plugins/ctf/common/src/metadata/tsdl/ctf-meta-update-text-array-sequence.cpp
@@ -0,0 +1,146 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright 2018 Philippe Proulx <pproulx@efficios.com>
+ */
+
+#include <stdint.h>
+
+#include "ctf-meta-visitors.hpp"
+
+static inline int set_text_array_sequence_field_class(struct ctf_field_class *fc)
+{
+    int ret = 0;
+    uint64_t i;
+
+    if (!fc) {
+        goto end;
+    }
+
+    switch (fc->type) {
+    case CTF_FIELD_CLASS_TYPE_STRUCT:
+    {
+        struct ctf_field_class_struct *struct_fc = ctf_field_class_as_struct(fc);
+
+        for (i = 0; i < struct_fc->members->len; i++) {
+            struct ctf_named_field_class *named_fc =
+                ctf_field_class_struct_borrow_member_by_index(struct_fc, i);
+
+            ret = set_text_array_sequence_field_class(named_fc->fc);
+            if (ret) {
+                goto end;
+            }
+        }
+
+        break;
+    }
+    case CTF_FIELD_CLASS_TYPE_VARIANT:
+    {
+        struct ctf_field_class_variant *var_fc = ctf_field_class_as_variant(fc);
+
+        for (i = 0; i < var_fc->options->len; i++) {
+            struct ctf_named_field_class *named_fc =
+                ctf_field_class_variant_borrow_option_by_index(var_fc, i);
+
+            ret = set_text_array_sequence_field_class(named_fc->fc);
+            if (ret) {
+                goto end;
+            }
+        }
+
+        break;
+    }
+    case CTF_FIELD_CLASS_TYPE_ARRAY:
+    case CTF_FIELD_CLASS_TYPE_SEQUENCE:
+    {
+        struct ctf_field_class_array_base *array_fc = ctf_field_class_as_array_base(fc);
+
+        if (array_fc->elem_fc->type == CTF_FIELD_CLASS_TYPE_INT ||
+            array_fc->elem_fc->type == CTF_FIELD_CLASS_TYPE_ENUM) {
+            struct ctf_field_class_int *int_fc = ctf_field_class_as_int(array_fc->elem_fc);
+
+            if (int_fc->base.base.alignment == 8 && int_fc->base.size == 8 &&
+                int_fc->encoding == CTF_ENCODING_UTF8) {
+                array_fc->is_text = true;
+
+                /*
+                 * Force integer element to be unsigned;
+                 * this makes the decoder enter a single
+                 * path when reading a text
+                 * array/sequence and we can safely
+                 * decode bytes as characters anyway.
+                 */
+                int_fc->is_signed = false;
+            }
+        }
+
+        ret = set_text_array_sequence_field_class(array_fc->elem_fc);
+        if (ret) {
+            goto end;
+        }
+
+        break;
+    }
+    default:
+        break;
+    }
+
+end:
+    return ret;
+}
+
+int ctf_trace_class_update_text_array_sequence(struct ctf_trace_class *ctf_tc)
+{
+    int ret = 0;
+    uint64_t i;
+
+    if (!ctf_tc->is_translated) {
+        ret = set_text_array_sequence_field_class(ctf_tc->packet_header_fc);
+        if (ret) {
+            goto end;
+        }
+    }
+
+    for (i = 0; i < ctf_tc->stream_classes->len; i++) {
+        ctf_stream_class *sc = (ctf_stream_class *) ctf_tc->stream_classes->pdata[i];
+        uint64_t j;
+
+        if (!sc->is_translated) {
+            ret = set_text_array_sequence_field_class(sc->packet_context_fc);
+            if (ret) {
+                goto end;
+            }
+
+            ret = set_text_array_sequence_field_class(sc->event_header_fc);
+            if (ret) {
+                goto end;
+            }
+
+            ret = set_text_array_sequence_field_class(sc->event_common_context_fc);
+            if (ret) {
+                goto end;
+            }
+        }
+
+        for (j = 0; j < sc->event_classes->len; j++) {
+            struct ctf_event_class *ec = (ctf_event_class *) sc->event_classes->pdata[j];
+
+            if (ec->is_translated) {
+                continue;
+            }
+
+            ret = set_text_array_sequence_field_class(ec->spec_context_fc);
+            if (ret) {
+                goto end;
+            }
+
+            ret = set_text_array_sequence_field_class(ec->payload_fc);
+            if (ret) {
+                goto end;
+            }
+        }
+    }
+
+end:
+    return ret;
+}